CVE-2021-30955
A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
- Record
CVE-2021-30955- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.6 High
AV:N/AC:H/Au:N/C:C/I:C/A:C - Weakness
- CWE-362
- Updated
- 2026-11-02
CVE List No score
A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
- Record
CVE-2021-30955- Updated
- 2026-11-02
EUVDEUVD-2021-17872 No score
A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
- Record
EUVD-2021-17872- Updated
- 2026-11-03
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | GeoSn0w/Pentagram-exploit-tester | 2022-03-18 |
| PoC in GitHub | b1n4r1b01/desc_race | 2022-03-01 |
| PoC in GitHub | markie-dev/desc_race_A15 | 2022-03-14 |
| PoC in GitHub | nickorlow/CVE-2021-30955-POC | 2022-02-28 |
| PoC in GitHub | st-rnd/desc_race-1 | 2022-03-24 |
| PoC in GitHub | timb-machine-mirrors/jakeajames-CVE-2021-30955 | 2022-02-28 |
| PoC in GitHub | verygenericname/CVE-2021-30955-POC-IPA | 2022-02-28 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30955 is a high vulnerability (CVSS 7.0) in Apple Ipados, published August 24, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.79%, the 92nd percentile. No source names a fixed version.